"Ukraine and the world community continue pressure on the aggressor. There are conducted negotiations on deoccupation of Crimea on the basis of the international formats, including "Jeneva+" format. Russia will pay the price to be paid by the aggressor," Poroshenko wrote.

He also stated that for the last two years Crimea "has plunged into mass arrests and repressions."

"Rights of the Crimean Tatars are cynically violated. Occupants’ behaviour in Crimea resembles more the Stalin times," the President added.

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